Metadata-Version: 2.1
Name: rsa
Version: 4.7.2
Summary: Pure-Python RSA implementation
Home-page: https://stuvel.eu/rsa
Author: Sybren A. Stuvel
Author-email: sybren@stuvel.eu
Maintainer: Sybren A. Stuvel
Maintainer-email: sybren@stuvel.eu
License: ASL 2
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Education
Classifier: Intended Audience :: Information Technology
Classifier: License :: OSI Approved :: Apache Software License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Classifier: Topic :: Security :: Cryptography
Requires-Python: >=3.5, <4
Description-Content-Type: text/markdown
Requires-Dist: pyasn1 (>=0.1.3)

Pure Python RSA implementation
==============================

[![PyPI](https://img.shields.io/pypi/v/rsa.svg)](https://pypi.org/project/rsa/)
[![Build Status](https://travis-ci.org/sybrenstuvel/python-rsa.svg?branch=master)](https://travis-ci.org/sybrenstuvel/python-rsa)
[![Coverage Status](https://coveralls.io/repos/github/sybrenstuvel/python-rsa/badge.svg?branch=master)](https://coveralls.io/github/sybrenstuvel/python-rsa?branch=master)
[![Code Climate](https://api.codeclimate.com/v1/badges/a99a88d28ad37a79dbf6/maintainability)](https://codeclimate.com/github/codeclimate/codeclimate/maintainability)

[Python-RSA](https://stuvel.eu/rsa) is a pure-Python RSA implementation. It supports
encryption and decryption, signing and verifying signatures, and key
generation according to PKCS#1 version 1.5. It can be used as a Python
library as well as on the commandline. The code was mostly written by
Sybren A.  Stüvel.

Documentation can be found at the [Python-RSA homepage](https://stuvel.eu/rsa). For all changes, check [the changelog](https://github.com/sybrenstuvel/python-rsa/blob/master/CHANGELOG.md).

Download and install using:

    pip install rsa

or download it from the [Python Package Index](https://pypi.org/project/rsa/).

The source code is maintained at [GitHub](https://github.com/sybrenstuvel/python-rsa/) and is
licensed under the [Apache License, version 2.0](https://www.apache.org/licenses/LICENSE-2.0)

Security
--------

Because of how Python internally stores numbers, it is very hard (if not impossible) to make a pure-Python program secure against timing attacks. This library is no exception, so use it with care. See https://securitypitfalls.wordpress.com/2018/08/03/constant-time-compare-in-python/ for more info.


Major changes in 4.1
--------------------

Version 4.0 was the last version to support Python 2 and 3.4. Version 4.1 is compatible with Python 3.5+ only.


Major changes in 4.0
--------------------

Version 3.4 was the last version in the 3.x range. Version 4.0 drops the following modules,
as they are insecure:

- `rsa._version133`
- `rsa._version200`
- `rsa.bigfile`
- `rsa.varblock`

Those modules were marked as deprecated in version 3.4.

Furthermore, in 4.0 the I/O functions is streamlined to always work with bytes on all
supported versions of Python.

Version 4.0 drops support for Python 2.6 and 3.3.


